CN108400652B - Wireless communication-based power station switching control system and power station - Google Patents
Wireless communication-based power station switching control system and power station Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/305—Communication interfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The invention relates to a wireless communication-based power change station control system and a power change station, wherein the power change station control system comprises a main control unit, a state management module and a plurality of sub-control units, wherein the main control unit is communicated with the state management module in a wireless communication mode; each sub-control unit is communicated with the state management module in a wireless communication mode; the main control unit is used for sending a corresponding control instruction to the state management module according to the battery replacement requirement; and the state management module calls the corresponding sub-control units according to the control instruction to control the working time sequence of each sub-control unit, and each sub-control unit controls one power station changing subsystem in real time. The invention adopts a wireless communication control mode to replace a wired communication and sliding link component communication control mode, adopts a distributed control and centralized management control method, and improves the real-time performance and reliability of the power station control.
Description
Technical Field
The invention relates to the technical field of power station changing control, in particular to a power station changing control system and a power station changing based on wireless communication.
Background
With the supply pressure and the pollution of tail gas caused by the consumption of traditional fossil energy, the energy-saving and environment-friendly electric vehicle has developed in a blowout mode in recent years, the development of the electric vehicle is limited by a battery technology at present, the problems that the battery capacity is limited and the charging time is long are unavoidable at the present stage, however, in a plurality of power-up modes, the power-change mode is an extremely fast, convenient and safe method.
The power exchanging station comprises a parking platform, a battery taking and exchanging trolley, a battery cabin storage and charging frame, a battery cabin elevator and other auxiliary equipment, the power exchanging process needs the components to be completed in a unified cooperation mode, each component comprises a plurality of executing mechanisms, the actions of the executing mechanisms are controlled by a servo motor and the like, and therefore the existing power exchanging station control system has the following characteristics: (1) a remote communication slave station having a plurality of sensor inputs and a plurality of output actuators; (2) has moving parts such as an RGV (guide rail guide vehicle). Based on the characteristics, the existing power station switching control system has the defects of various communication cables, easiness in damage, more fault nodes, difficulty in maintenance, easiness in damage of a sliding link of a moving part and need of frequent replacement.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a power station switching control system and a power station switching based on wireless communication, wherein a wireless communication control mode is adopted to replace a communication control mode of a wired communication and sliding link component, a distributed control and centralized management control method is adopted, and the real-time performance and the reliability of power station switching control are improved.
In order to solve the above technical problems, according to an aspect of the present invention, there is provided a power switching station control system based on wireless communication, including a main control unit, a state management module and a plurality of sub-control units,
the main control unit communicates with the state management module in a wireless communication mode; each sub-control unit is communicated with the state management module in a wireless communication mode;
the main control unit is used for sending a corresponding control instruction to the state management module according to the battery replacement requirement;
the state management module calls corresponding sub-control units according to the control instruction to control the working time sequence of each sub-control unit;
and each sub-control unit controls one power station changing subsystem in real time.
Further, the sub-control unit sets two task periods, namely a first task period and a second task period, wherein the first task period is smaller than the second task period, and outputs a dynamic response instruction to an execution mechanism of the power station swapping subsystem in real time in the first task period to perform independent internal control;
and entering the second task period when the first task period is in an idle state, acquiring process data of the power station changing subsystem, and uploading the process data to a state management module.
Further, the sub-control unit includes a kernel register, scans a hardware interface of the power swapping station subsystem in the first task period in a multi-core and multi-thread manner, and directly performs fault response if the power swapping station subsystem has a hardware fault.
Further, the fault response comprises fault interruption and linkage shutdown among the power station changing subsystems.
Further, the process data includes temperature and water level.
Further, the state management module includes a cache unit, configured to store data content in one or more preset periods of the sub control unit and the main control unit in real time, where the preset period is greater than or equal to the second task period.
Further, the cache unit has a retransmission mechanism, and when the sub-control unit has a communication flash and establishes communication connection with the cache unit again, the cache unit sends the data content of the current cycle or multiple cycles of the sub-control unit to the sub-control unit.
Further, the cache unit includes a cache control subunit, and when the power swapping station subsystem corresponding to a certain sub-control unit is in an idle state, the cache control subunit recovers a corresponding idle memory and controls the idle memory to store control subunit data in other non-idle states.
Further, the state management module further includes a data forwarding unit, configured to receive the process data and forward the process data to the main control unit.
Further, the main control unit is further configured to analyze and process the process data and send a corresponding feedback instruction.
Further, the main control unit compares the process data with a preset process data range, and if the process data is not in the preset process data range, the main control unit controls to send an alarm signal.
Further, the main control unit is further configured to control each sub-control unit to perform clock synchronization during initialization.
Further, the main control unit is also used for interrupting the work of the power station changing subsystem in a communication blocking or abnormal state.
Further, the power exchanging station is divided into a plurality of power exchanging station subsystems according to an on-site principle, each power exchanging station subsystem comprises a plurality of sensors and an execution mechanism, and the sensors and the execution mechanisms of each power exchanging station subsystem are communicated in a communication cable or wireless communication mode; the plurality of battery replacement subsystems are communicated in a wireless communication mode.
Further, the battery replacement station subsystem comprises an RGV subsystem, a battery replacement platform subsystem and a battery cabin elevator subsystem.
According to another aspect of the invention, a power swapping station is provided, which comprises the power swapping station control system and the power swapping station subsystem.
Further, the battery replacement station subsystem comprises an RGV subsystem, a battery replacement platform subsystem and a battery cabin elevator subsystem.
Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the wireless communication-based power station changing control system and the power station changing control system can achieve considerable technical progress and practicability, have industrial wide utilization value and at least have the following advantages:
(1) the invention adopts a wireless communication control mode to replace a wired communication and sliding link component communication control mode, reduces the use of communication cables, is convenient to maintain, has flexible networking and improves the real-time control efficiency of the power station.
(2) Compared with the traditional wireless control, because of the position rings of the motor and the like, the control of the speed ring requires high real-time control requirement, the sub-control unit carries out real-time control on the corresponding power station changing subsystem, opens up the isochronous fast interruption for responding linkage stop and transmitting the fault, directly bypasses a logic layer and a system interface for fast executing a hardware layer, opens up the multi-thread operation and is specially used for responding the fault interruption and the linkage stop;
the main control unit processes and stores status and process data for each of the sub-control units. The sub-control units corresponding to the power station replacing subsystems are in state time sequence interaction with the main control unit to form distributed control and centralized management, and real-time performance and reliability of power station replacing control are improved.
(3) The state management module is added between the main control unit and the sub-control units, so that the scheduling of each sub-control unit can be dynamically and reasonably utilized, the sub-control units are informed of memory recovery in advance according to the known time sequence transmitted by the main control unit, and rapid removal is performed under the condition that some sub-control units are abnormal and the whole is not influenced.
(4) The invention improves the wireless stable communication speed under the condition of meeting the motion control requirement.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of a power station swapping control system based on wireless communication according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a power swapping station according to an embodiment of the present invention.
Description of the main reference numerals:
1-main control unit 2-state management module 3-sub control unit
4-RGV subsystem 5-battery replacement platform subsystem 6-battery cabin elevator subsystem
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description will be made with reference to the accompanying drawings and preferred embodiments of a power station swapping control system and a power station swapping station based on wireless communication according to the present invention.
As shown in fig. 1, the power station switching control system based on wireless communication comprises a main control unit 1, a state management module 2 and a plurality of sub-control units 3, wherein the main control unit 1 communicates with the state management module 2 in a wireless communication mode; each sub-control unit 3 communicates with the status management module 2 in a wireless communication manner. The invention adopts a wireless communication mode to replace the communication mode of hard wire connection in the current power station control system, saves cables, is easy to maintain and has flexible networking. The main control unit 1 is used for sending a corresponding control instruction to the state management module 2 according to the battery replacement requirement; and the state management module 2 calls the corresponding sub-control units 3 according to the control instruction to control the working time sequence of each sub-control unit 3, and each sub-control unit 3 controls one power station changing subsystem in real time.
In the example shown in fig. 2, the power swapping station is divided into a plurality of power swapping station subsystems according to an on-site principle, each power swapping station subsystem includes a plurality of sensors and an execution mechanism, and the plurality of sensors and the execution mechanism of each power swapping station subsystem communicate with each other in a communication cable or wireless communication manner; the plurality of battery replacement subsystems are communicated in a wireless communication mode. In fig. 2, the battery replacement station subsystem includes an RGV subsystem 4, a battery replacement platform subsystem 5, and a battery compartment elevator subsystem 6. However, it should be understood that the manner of dividing the swapping station into subsystems is not limited to this, and the swapping station may be divided more finely according to factors such as specific control requirements, or other forms of division, for example, the swapping station is divided into a swapping platform subsystem, a battery pack storage subsystem, a battery pack switching subsystem, and an RGV subsystem. The sensors include a distance sensor, a displacement sensor, a temperature sensor, a hydraulic pressure sensor and the like. The actuating mechanism comprises a lifting mechanism, a bolt tightening mechanism, a servo motor and the like.
The inside of each power station replacing subsystem can be continuously connected in a wired communication mode according to a local principle, the corresponding sub-control unit 3 of each power station replacing subsystem is connected with the main control unit 1 and the state management module 2 in a wireless communication mode, a distributed control and centralized management control mode is adopted, and the real-time control efficiency is improved. The distributed control and centralized management are in a master-slave question-answering mode, the sub-control unit is used as a local control unit of the power station swapping subsystem, response implementation is guaranteed, and the overall control time sequence is guaranteed to meet power swapping requirements according to synchronous calling of the main control unit.
The following describes the components of the converter station control system:
sub-control unit
Each sub-control unit 3 performs independent real-time management to control the corresponding power station changing subsystem. The sub-control unit 3 sets two task periods, which are a first task period and a second task period, respectively, wherein the first task period is smaller than the second task period, the first task period is a fast task period, and the priority of the first task period is higher than that of the second task period. The sub-control unit 3 comprises a kernel register, adopts a multi-core multi-thread operation mode, constantly scans a hardware interface of the power swapping station subsystem in a first task period and the like, and if the power swapping station subsystem has a hardware fault, the sub-control unit 3 does not need to communicate with the main control unit through a system interface, but directly carries out rapid communication in an IO physical scanning area through the hardware interface to carry out fault response. The fault response comprises fault interruption and linkage shutdown among the power station replacing subsystems, and the real-time performance and the efficiency of power station replacing control are improved.
In the first task period, the sub-control unit 3 receives the execution start information transmitted by the state management module 2, and for the execution mechanisms with high real-time requirements, such as the servo motor of the power station replacing subsystem, the sub-control unit 3 outputs a dynamic response command to the execution mechanisms in real time to perform independent internal control. And opening a slow task period, namely a second task period, for the process data such as temperature, water level and the like, entering the second task period when the first task period is in an idle state, acquiring the process data of the power station changing subsystem, and uploading the process data to the state management module 2.
Because the control of the motor and the like position ring and the speed ring requires high real-time control, a distributed management and centralized control strategy is adopted, the sub-control unit 3 carries out real-time control on the power station changing subsystem, develops multiple threads, is used for responding to isochronous fast interruption, is used for responding to linkage stop and transmitting faults per se, directly bypasses a logic layer and a system interface to carry out fast on a hardware layer, and improves the real-time performance and the response efficiency of the control.
(II) State management Module
The state management module 2 includes a cache unit, and is configured to store data contents in one or more preset periods of the sub-control unit 3 and the main control unit 1 in real time, where the preset period is greater than or equal to the second task period, and may be set according to a specific control requirement, for example, may be set to store data contents in the first 10 periods in real time. The buffer unit can acquire the data of the main control unit 1 and each sub-control unit 3 in real time or at fixed time set in a preset time period, and store the acquired data in a classified manner.
The cache unit is also provided with a retransmission mechanism, when the sub-control unit 3 generates communication flash, the sub-control unit is in handshake communication with the cache again, and after communication connection is established, the cache unit retransmits the data content of the current period or a plurality of periods of the corresponding sub-control unit 3 to the corresponding sub-control unit 3, so that the corresponding battery replacement subsystem can quickly continue to operate.
And the state management module 2 calls the interface of the sub-control unit 3 in real time according to the state time sequence and transmits the real-time on-site task requirement. The cache unit comprises a cache control subunit and also has the capability of tracking resources by nodes, when the power conversion station subsystem corresponding to a certain sub-control unit 3 is in an idle state, the cache control subunit can timely recover a corresponding idle memory and control the idle memory to store the data of other control subunits in a non-idle state, so that the real-time performance of control is improved.
The state management module 2 further comprises a data forwarding unit, which is used for receiving the process data of the sub-control unit 3, collecting the process data, and forwarding the process data to the main control unit 1 for batch processing and storage.
The state management module 2 can dynamically and reasonably schedule each sub-control unit 3, and inform the sub-control units 3 of virtual memory recovery in advance according to the known time sequence transmitted by the main control unit 1, so that when some sub-control units 3 are abnormal, rapid removal is performed without affecting the whole control system. The functions of power failure retransmission of the sub-control unit 3 and the removal of the re-networking by the abnormal sub-control unit 3 can be realized.
(III) Main control Unit
The main control unit 1 mainly allocates state machine operation steps to the subsystems, and processes and stores process data of each power conversion station subsystem.
The main control unit 1 is further configured to analyze and process the process data and send a corresponding feedback instruction. The main control unit 1 can perform qualitative analysis of the big data in the form of process data, forming a pre-diagnosis. For example, the main control unit 1 compares the process data with a preset process data range, and if the process data is not in the preset process data range, the main control unit controls to send out an alarm signal, so that the control reliability is improved.
The main control unit 1 is further configured to control each sub-control unit 3 to perform clock synchronization during initialization, control the clocks of each sub-control unit 3 and the main control unit 1 to be in a synchronous state, ensure the accuracy of real-time response of the system, and also ensure the accuracy of response interruption of each sub-control unit 3.
The main control unit 1 can also actively interrupt the work of the power switching station subsystem in a communication blockage or abnormal state according to an actual operation condition, specifically, the power switching station subsystem is in the communication blockage or abnormal state, the main control unit 1 sends an interrupt control instruction to the state management module 2, the terminal control instruction includes address information of a sub-control unit 3 corresponding to the power switching station subsystem in the communication blockage or abnormal state, the state management module 2 forwards the interrupt control instruction to the corresponding sub-control unit 3, the sub-control unit 3 interrupts the work of the corresponding power switching station subsystem according to the interrupt control instruction, and the normal work of other sub-control units 3 is not affected in the whole process.
The embodiment of the invention provides a power station switching control system based on wireless communication, which adopts a wireless communication control mode to replace a communication control mode of wired communication and a sliding link component, reduces the use of communication cables, is convenient to maintain, is flexible in networking and improves the real-time control efficiency of a power station switching. In addition, compared with the traditional wireless control, because of the position rings of the motor and the like, the control requirement of the speed ring on real-time control is very high, the sub-control unit carries out real-time control on the corresponding power station changing subsystem, opens up isochronous fast interruption for responding linkage stop and transmitting faults per se, directly bypasses a logic layer and a system interface for fast executing a hardware layer, opens up multi-thread operation and is specially used for responding the fault interruption and the linkage stop; the main control unit processes and stores status and process data for each of the sub-control units. The sub-control units corresponding to the power station replacing subsystems are in state time sequence interaction with the main control unit to form distributed control and centralized management, and real-time performance and reliability of power station replacing control are improved. Moreover, a state management module is added between the main control unit and the sub-control units, so that the scheduling of each sub-control unit can be dynamically and reasonably utilized, the sub-control units are informed of memory recovery in advance according to the known time sequence transmitted by the main control unit, and rapid cutting is performed under the condition that some sub-control units are abnormal and the whole is not influenced. The invention improves the wireless stable communication speed under the condition of meeting the motion control requirement.
An embodiment of the present invention further provides a swapping station, as shown in fig. 2, including any one of the swapping station control systems in the above examples, and further including a plurality of swapping station subsystems. The power change station control system comprises a main control unit 1, a state management module 2 and a plurality of sub-control units 3, wherein the main control unit 1 sends a corresponding control instruction to the state management module 2 according to the power change requirement; and the state management module 2 calls the corresponding sub-control units 3 according to the control instruction to control the working time sequence of each sub-control unit 3, and each sub-control unit 3 controls one power station changing subsystem in real time.
As shown in fig. 2, the power swapping station is divided into a plurality of power swapping station subsystems according to an on-site principle, each power swapping station subsystem includes a plurality of sensors and an execution mechanism, and the plurality of sensors and the execution mechanism of each power swapping station subsystem communicate with each other in a communication cable or wireless communication manner; the plurality of battery replacement subsystems are communicated in a wireless communication mode. The power station replacing subsystem comprises an RGV subsystem 4, a power platform replacing subsystem 5 and a battery cabin elevator subsystem 6. However, it should be understood that the manner of dividing the swapping station into subsystems is not limited to this, and the swapping station may be divided more finely according to factors such as specific control requirements, or other forms of division, for example, the swapping station is divided into a swapping platform subsystem, a battery pack storage subsystem, a battery pack switching subsystem, and an RGV subsystem. The sensors include a distance sensor, a displacement sensor, a temperature sensor, a hydraulic pressure sensor and the like. The actuating mechanism comprises a lifting mechanism, a bolt tightening mechanism, a servo motor and the like.
The inside of each power station replacing subsystem can be continuously connected in a wired communication mode according to a local principle, the corresponding sub-control unit 3 of each power station replacing subsystem is connected with the main control unit 1 and the state management module 2 in a wireless communication mode, a distributed control and centralized management control mode is adopted, and the real-time control efficiency is improved. The distributed control and centralized management are in a master-slave question-answering mode, the sub-control unit is used as a local control unit of the power station swapping subsystem, response implementation is guaranteed, and the overall control time sequence is guaranteed to meet power swapping requirements according to synchronous calling of the main control unit.
The control mode of wireless communication is adopted among all the power station subsystems of the power station to replace the communication control mode of wired communication and sliding link parts, so that the use of communication cables is reduced, the maintenance is convenient, and the networking is flexible; the control system performs coordinated control on all components of the power conversion station in a distributed control and centralized management mode, and improves the real-time control efficiency of the power conversion station, so that the power conversion efficiency is improved, and the user experience is improved.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (16)
1. A power station switching control system based on wireless communication is characterized by comprising a main control unit, a state management module and a plurality of sub-control units,
the main control unit communicates with the state management module in a wireless communication mode; each sub-control unit is communicated with the state management module in a wireless communication mode;
the main control unit is used for sending a corresponding control instruction to the state management module according to the battery replacement requirement;
the state management module calls corresponding sub-control units according to the control instruction to control the working time sequence of each sub-control unit;
each sub-control unit controls one power station changing subsystem in real time;
the sub-control unit sets two task periods which are a first task period and a second task period respectively, wherein the first task period is smaller than the second task period, and outputs a dynamic response instruction to an execution mechanism of the power station swapping subsystem in real time in the first task period to perform independent internal control;
and entering the second task period when the first task period is in an idle state, acquiring process data of the power station changing subsystem, and uploading the process data to a state management module.
2. The charging station control system based on wireless communication as claimed in claim 1,
the sub-control unit comprises a kernel register, a multi-core and multi-thread mode is adopted, a hardware interface of the power swapping station subsystem is scanned in the first task period, and if the power swapping station subsystem has a hardware fault, the sub-control unit directly carries out fault response.
3. The charging station control system based on wireless communication as claimed in claim 2,
the fault response comprises fault interruption and linkage shutdown among the power station replacing subsystems.
4. The charging station control system based on wireless communication as claimed in claim 1,
the process data includes temperature and water level.
5. The charging station control system based on wireless communication as claimed in claim 1,
the state management module comprises a cache unit and is used for storing data contents in one or more preset periods of the sub-control unit and the main control unit in real time, wherein the preset period is more than or equal to a second task period.
6. The charging station control system based on wireless communication of claim 5,
the buffer unit is provided with a retransmission mechanism, and when the sub-control unit generates communication flash and establishes communication connection with the buffer unit again, the buffer unit sends the data content of the current period or a plurality of periods of the sub-control unit to the sub-control unit.
7. The charging station control system based on wireless communication of claim 5,
the cache unit comprises a cache control subunit, and when a power station swapping subsystem corresponding to a certain subunit is in an idle state, the cache control subunit recovers a corresponding idle memory and controls the idle memory to store other control subunit data in a non-idle state.
8. The charging station control system based on wireless communication as claimed in claim 1,
the state management module also comprises a data forwarding unit which is used for receiving the process data and forwarding the process data to the main control unit.
9. The charging station control system based on wireless communication as claimed in claim 1,
the main control unit is also used for analyzing and processing the process data and sending corresponding feedback instructions.
10. The charging station control system based on wireless communication of claim 9,
and the main control unit compares the process data with a preset process data range, and if the process data is not in the preset process data range, the main control unit controls to send out an alarm signal.
11. The charging station control system based on wireless communication as claimed in claim 1,
the main control unit is also used for controlling each sub-control unit to carry out clock time synchronization in the initialization period.
12. The charging station control system based on wireless communication as claimed in claim 1,
the main control unit is also used for interrupting the work of the power station changing subsystem in a communication blockage or abnormal state.
13. The power station changing control system based on wireless communication according to any one of claims 1-12,
the power conversion station is divided into a plurality of power conversion station subsystems according to an on-site principle, each power conversion station subsystem comprises a plurality of sensors and an execution mechanism, and the sensors and the execution mechanisms of each power conversion station subsystem are communicated in a communication cable or wireless communication mode; the plurality of battery replacement subsystems are communicated in a wireless communication mode.
14. The charging station control system based on wireless communication of claim 13,
the battery replacement station subsystem comprises an RGV subsystem, a battery replacement platform subsystem and a battery cabin elevator subsystem.
15. A power swapping station comprising the power swapping station control system of any one of claims 1-14, and further comprising a plurality of power swapping station subsystems.
16. The swapping station of claim 15, wherein:
the battery replacement station subsystem comprises an RGV subsystem, a battery replacement platform subsystem and a battery cabin elevator subsystem.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711216951.2A CN108400652B (en) | 2017-11-28 | 2017-11-28 | Wireless communication-based power station switching control system and power station |
| EP18882699.4A EP3719955A4 (en) | 2017-11-28 | 2018-08-30 | Battery-swapping station control system based on wireless communication and battery-swapping station |
| PCT/CN2018/103260 WO2019105081A1 (en) | 2017-11-28 | 2018-08-30 | Battery-swapping station control system based on wireless communication and battery-swapping station |
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| CN201711216951.2A CN108400652B (en) | 2017-11-28 | 2017-11-28 | Wireless communication-based power station switching control system and power station |
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| CN108400652A CN108400652A (en) | 2018-08-14 |
| CN108400652B true CN108400652B (en) | 2020-11-06 |
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| EP (1) | EP3719955A4 (en) |
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| CN108400652B (en) * | 2017-11-28 | 2020-11-06 | 蔚来(安徽)控股有限公司 | Wireless communication-based power station switching control system and power station |
| CN109448349B (en) * | 2018-11-22 | 2021-12-28 | 广州南湾信息科技有限公司 | Hydrological telemetering equipment |
| CN110053511A (en) * | 2019-05-05 | 2019-07-26 | 广州市旋通节能科技有限公司 | The Intelligent management control system of electricity is changed in a kind of electric ship charging |
| CN111263385B (en) * | 2020-01-19 | 2023-02-28 | 深圳拓邦股份有限公司 | Charging and battery replacing cabinet and communication method thereof |
| US20230015794A1 (en) * | 2021-07-16 | 2023-01-19 | Gogoro Inc. | Battery exchange method and battery exchange system |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3719955A4 (en) | 2021-05-19 |
| WO2019105081A1 (en) | 2019-06-06 |
| EP3719955A1 (en) | 2020-10-07 |
| CN108400652A (en) | 2018-08-14 |
| WO2019105081A9 (en) | 2020-07-16 |
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